C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Got a new leak, need help...

Thread Tools
 
Search this Thread
 
Old Feb 11, 2004 | 10:30 PM
  #1  
iceman_t1's Avatar
iceman_t1
Thread Starter
Pro
 
Joined: Sep 2003
Posts: 589
Likes: 0
From: Houston TX
Default Got a new leak, need help...

I was crawling around under the car tonight and found this.

https://www.corvetteforum.com/regist...ages/leak1.JPG

Can someone please tell me how bad this is?? This is just in front of the rear differential on the right side. I had the car inspected carefully, or so I thought, before I bought it. This is my first time under the rear end. Any ideas?



[Modified by iceman_t1, 3:37 AM 2/12/2004]
Reply
Old Feb 11, 2004 | 11:22 PM
  #2  
86PACER's Avatar
86PACER
Le Mans Master
20 Year Member
 
Joined: Jan 2003
Posts: 5,858
Likes: 7
From: Santa Maria CA
Default Re: Got a new leak, need help... (iceman_t1)

It really looks like it's leaking past the drain plug. I would clean all the oil off really good and then make sure the plug is tightened down properly. Some degreaser spray and a rag should do it. If it is loose, tighten it. If it is tight, remove it and make sure you are getting a proper seal at the plug hole. Clean the back of the plug and arround the plug hole in the differential before intalling it back on. Keep an eye on it for leaks. After cleaning all that oil off you should be able to see where it's coming from. :auto:


[Modified by 86PACER, 8:25 PM 2/11/2004]
Reply
Old Feb 11, 2004 | 11:38 PM
  #3  
iceman_t1's Avatar
iceman_t1
Thread Starter
Pro
 
Joined: Sep 2003
Posts: 589
Likes: 0
From: Houston TX
Default Re: Got a new leak, need help... (86PACER)

Is that the drain plug where I hear people talking about sticking a small hose and pumping out the fluid for service? If so, I was wondering where that was. The only reason I found this was because I've got the car stored up on the ramps and it was easy to just get under there and take a good look around with a bright light. I haven't noticed any fluid drips on the ground under the car, yet.
Reply
Old Feb 12, 2004 | 12:46 AM
  #4  
86Moon's Avatar
86Moon
Drifting
 
Joined: Feb 2003
Posts: 1,292
Likes: 0
From: Beavercreek OR
Default Re: Got a new leak, need help... (iceman_t1)

ICE MAN...You,.... no wait that was another time. That's the place.

I gotta say, that is the most elaborate system I've seen yet to get a car well off the ground :eek: I hope it's safe.

Be careful, Be very frickin' careful :rofl:
Reply
Old Feb 12, 2004 | 12:52 AM
  #5  
86PACER's Avatar
86PACER
Le Mans Master
20 Year Member
 
Joined: Jan 2003
Posts: 5,858
Likes: 7
From: Santa Maria CA
Default Re: Got a new leak, need help... (iceman_t1)

Is that the drain plug where I hear people talking about sticking a small hose and pumping out the fluid for service?
Yes :yesnod:
Reply
Old Feb 12, 2004 | 12:53 AM
  #6  
iceman_t1's Avatar
iceman_t1
Thread Starter
Pro
 
Joined: Sep 2003
Posts: 589
Likes: 0
From: Houston TX
Default Re: Got a new leak, need help... (86Moon)

I am totally comfortable under the car with this setup.

Thanks for the input. I'll pull the plug, get the area cleaned up and see if it continues to leak. I may just drain the differential, replace the fluid and put a new plug in there to be on the safe side. How does that sound?
Reply
Old Feb 12, 2004 | 01:07 AM
  #7  
86PACER's Avatar
86PACER
Le Mans Master
20 Year Member
 
Joined: Jan 2003
Posts: 5,858
Likes: 7
From: Santa Maria CA
Default Re: Got a new leak, need help... (iceman_t1)

That is a good idea, since the fluid level must have gone down some from the leakage.
Reply
Old Feb 12, 2004 | 06:38 PM
  #8  
jackdaroofer's Avatar
jackdaroofer
Race Director
Supporting Lifetime Gold
15 Year Member
 
Joined: Dec 1999
Posts: 11,182
Likes: 2
From: Almost all Skyline Cruises Vettes at Waterside 1-5
Cruise-In I Veteran
Cruise-In II Veteran
Cruise-In III Veteran
Cruise-In IV Veteran
Cruise-In V Veteran
Cruise-In VI Veteran
Cruise-In VII Veteran
Default Re: Got a new leak, need help... (iceman_t1)

I am totally comfortable under the car with this setup.

Thanks for the input. I'll pull the plug, get the area cleaned up and see if it continues to leak. I may just drain the differential, replace the fluid and put a new plug in there to be on the safe side. How does that sound?
:cheers: You may just want to pull the plug and see if fluid drains out. Overfilling the diff is easy and often the problem!

Not a bad idea to pump out the old and replac with new, but I would also be sure to put the GM aditive in and be careful yourself not to over fill it.

I fill it till fluid starts to run back out of the hole and then I let it drain till it stops running out of the hole. Car should be level while doing this

:seeya

:steering:
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-1

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-2

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-3

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-4

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-5

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
story-6

2027 Corvette Buyer's Guide: Everything You Need to Know!

 Joe Kucinski
story-7

10 Things C8 Corvette Owners Hate (But Won't Tell You)

 Joe Kucinski
story-8

10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

 Brett Foote
story-9

Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

 Joe Kucinski
Old Feb 12, 2004 | 07:59 PM
  #9  
Corvette Kid's Avatar
Corvette Kid
Large Impressive Member
Supporting Lifetime Gold
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2003
Posts: 65,811
Likes: 71
From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Default Re: Got a new leak, need help... (iceman_t1)

Is it wet or just burned on? I was thinking it might just be an old burned on stain from checking or filling.
Reply
Old Feb 12, 2004 | 08:36 PM
  #10  
iceman_t1's Avatar
iceman_t1
Thread Starter
Pro
 
Joined: Sep 2003
Posts: 589
Likes: 0
From: Houston TX
Default Re: Got a new leak, need help... (Corvette Kid NC)

Thanks again for all your replies.

Here's an update. I'm going to get it all cleaned up first and make sure the plug is gootin tite. Then I'm going to drive it a while and see if I can pin point the leak, if it still leaks. If it is leaking from the seal or gasket, I will take care of that. If no leak, I will still drain it and refill with Mobil 1 75W90 and the GM additive. I got all the fluids I need on the way home and a small syphon pump. I also got some Simple Green to help get it cleaned up good. I'll let you all know what the outcome is from these steps. Thanks again.
Reply
Old Feb 15, 2004 | 07:14 PM
  #11  
iceman_t1's Avatar
iceman_t1
Thread Starter
Pro
 
Joined: Sep 2003
Posts: 589
Likes: 0
From: Houston TX
Default Re: Got a new leak, need help... (Corvette Kid NC)

Well, I have taken the car out twice and there is no sign of anymore leaking from around the fill plug of anywhere else around the rear diff. I was able to tighten the fill plug a little bit but I'm betting it was just a messy service from the previous fluid change. At least now I can check it after every outing since I am now storing the car on top of my ramps. Thanks again for the help.
Reply
Old Feb 15, 2004 | 07:30 PM
  #12  
Bill Curlee's Avatar
Bill Curlee
Tech Contributor
Supporting Lifetime Gold
Veteran: Navy
25 Year Member
Liked
Community Favorite
 
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Default Re: Got a new leak, need help... (iceman_t1)

Check the rear DIFF fluid level!! Usually it's a sign that the rear pinion seal is leaking! If it is low it wont leak any more! Check the level, refill if necessary and monitor! CHECK THAT REAR PINION SEAL!

BC
Reply
Old Feb 15, 2004 | 07:56 PM
  #13  
iceman_t1's Avatar
iceman_t1
Thread Starter
Pro
 
Joined: Sep 2003
Posts: 589
Likes: 0
From: Houston TX
Default Re: Got a new leak, need help... (Bill Curlee)

I hear ya Bill. I will pull the plug and check it. I'm prepared to replace the fluid as well. Thanks.
Reply
Old Feb 15, 2004 | 08:44 PM
  #14  
iceman_t1's Avatar
iceman_t1
Thread Starter
Pro
 
Joined: Sep 2003
Posts: 589
Likes: 0
From: Houston TX
Default Re: Got a new leak, need help... (Bill Curlee)

I pulled the plug and stuck my pinky in there and the fluid level is just a hair below the bottom of the fill hole. I guess I'll just keep an eye on it and see what happens.
Reply
Old Feb 15, 2004 | 08:46 PM
  #15  
Bill Curlee's Avatar
Bill Curlee
Tech Contributor
Supporting Lifetime Gold
Veteran: Navy
25 Year Member
Liked
Community Favorite
 
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Default Re: Got a new leak, need help... (iceman_t1)

Sounds like a plan!!

Good luck!!

BC
Reply

Get notified of new replies

To Got a new leak, need help...





All times are GMT -4. The time now is 10:47 PM.

story-0
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-1
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-2
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-3
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-4
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-5
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-6
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-7
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-8
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-9
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE